I have 2 computers, desktop with Windows 7 Professional and a laptop with Windows 7 Home Ultimate. On the desktop, when I connect the N1 via USB, it shows up in Device Manager as a Portable Device. I can then open up Windows Media Player, click the Sync tab and the N1 shows up as a connected device. On the laptop, when I connect the N1 via USB, it does not show up in Device Manager as a Portable Device. It shows up as a Disk Drive. I can see all the files and folders on the SD card, but when I open Windows Media Player, there is nothing shown in the Sync tab. What am I doing wrong for it to not show up on my laptop as a portable device?